Whakaahuatanga-Mātā: Tūhurahia ngā mahi matua me ngā painga o ngā whakakōkī amine i roto i te hanga polyurethane. Akohia me pēhea e arotau ai ā mātou otinga whakakōkī matatau i te mahi pahuka me te whakatutuki i ngā hiahia o te ahumahi.
He rauemi nui te pahuka polyurethane (PU) e whakamahia ana i roto i te whānuitanga o ngā mahi tae atu ki te whakamahana, ngā wāhanga motuka, te hanga me ngā taonga whare. Ko te kaupapa matua o te hanga polyurethane kei roto i te mahi a ngā kaiwhakaoho, inā koa ko ngā kaiwhakaoho amine, he mea nui ēnei mō te whakahaere i te tere, te whai hua me te kounga o ngā tukanga pahuka me te whakamaroke.
Hei kaihanga matua mō ngā whakakōkī polyurethane, ka arotahi mātou ki te whakarato i ngā whakakōkī amine mahi-teitei mō ngā momo pūnaha pahuka – te pahuka pakari, te pahuka ngāwari, te pahuka āhua-pakari me te pahuka rehu. Ka tūhuratia e tēnei tuhinga ngā āhuatanga me ngā mahi a ngā whakakōkī amine me te pēhea e whakatairanga ai i te hanga polyurethane whai hua.
He aha ngāngā whakakorikori amine?
Ko ngā whakakōkī amine he matū waro kei roto ngā ngota hauota. Ko te nuinga o ēnei e whakamahia ana hei whakatairanga i te tauhohenga matū i waenga i ngā polyol me ngā isocyanate hei hanga polyurethanes. I roto i ngā pūnaha pahuka, e rua ngā tauhohenga matua e whakahaerehia ana e ngā whakakōkī amine:
1. Tauhohenga pahuka – te tauhohenga i waenga i te isocyanate me te wai hei whakaputa hau waro hauhā (CO₂) hei hanga i te hanganga pahuka.
2. Tauhohenga whakapūkara – Mā te tauhohenga i waenga i te isocyanate me te polyol ka homai he kaha ā-ringa ki te pahuka.
Mā te whakataurite i ēnei tauhohenga e rua, ka whakarite ngā whakakorikori amine kia tika te whakawhanui o te pahuka, kia rite te maroke, ā, kia tutuki hoki ngā whakaritenga mahi.
Ngā āhuatanga matua o ngā whakakorikori amine
- Te kaha tauhohenga teitei: Ka taea e ngā whakakorikori amine te tere tere ake i te tere tauhohenga, te whakapoto i te wā tukatuka me te whakapai ake i te pai o te whakaputa.
- Kōwhiringa ritenga: Ka taea te hanga i ngā whakakorikori amine rerekē hei whakatairanga i te tauhohenga huka, te tauhohenga gelation rānei, e ai ki te whakamahinga huka.
- He iti te tukunga me te iti o te haunga: He mea hanga āta ngā whakakorikori amine hou hei whakaiti i ngā pūhui waro pūngāwerewere (VOC) me te haunga amine kia tutuki ai ngā ture taiao me te haumaru.
- Hototahi tino pai: He hototahi ēnei ki ngā momo pūnaha isocyanate me te polyol, tae atu ki ngā pūnga pupuhi HFO tuku iho me te taiao.
- He whānuitanga o ngā whakamahinga: He pai mō te pahuka ngāwari, te pahuka mārō, te pahuka ātete teitei (HR), te pahuka kiri whakauru, te pahuka moroiti me te pahuka polyurethane rehu (SPF).
Te Tūranga o ngā Whakakōkī Amine i roto i ngā Pahuka Polyurethane
1. Te Whakahaere i ngā Kōtaha Tauhohenga
Me whakarite tika te wā o te tukanga pahuka kia eke ki te teitei pikinga pai rawa atu, te hanganga pūtau ōrite, me ngā āhuatanga whakamutunga pai rawa atu. Ka āwhina ngā whakakorikori amine ki te whakahaere i ngā kōtaha tīmatanga, pikinga, me te whakamaroke kia urutau ai ngā tukanga hanga rerekē (hei tauira, pahuka poraka, pahuka whakarewa, pahuka rehu).
2. Te Whakapai Ake i te Kounga o te Huka
Ko te hanganga pūtau ōrite, te āhua maeneene o te mata, me te pakeke ōrite ngā tohu o ngā pahuka kounga teitei. Ka tutuki tēnei i ngā whakakorikori amine mā te whakarite kia ōrite te whakaputanga hau me te hononga whakawhiti taurite.
3. Te Whakapai Ake i te Whai Hua o te Pūngao
I roto i ngā tono whakamahana wera pēnei i te hanganga me te pouaka whakamātao, ka āwhina ngā whakakorikori amine ki te whakaputa pahuka mārō me te hanganga pūtau pai me te kawe wera iti, e whakapai ake ana i te whai huatanga o te pūngao.
4. Te Whakarite ki ngā Hiahia o te Hanga
Ahakoa kei te mahi koe me ngā pūnaha wai-nui, ngā pahuka iti-kiato, ngā elastomers motuhake rānei, ka taea e koe te whiriwhiri i tētahi whakakorikori amine motuhake hei whakatutuki i ō whāinga tukanga me te mahi.
He aha i whiriwhiri ai i ā mātou otinga Amine Catalyst?
Kei tā mātou kamupene he whānuitanga katoa o ngā whakakōkī amine me ngā āhuatanga mahi kua whakaritea, ngā āhuatanga tukunga, me te hototahi ki ngā pūnaha pahuka o te whakatupuranga e whai ake nei. Ko ā mātou hua matua ko:
- MXC-37 (DMAEE)– mō ngā pahuka ngāwari e ahu mai ana i te ester me ngā whakatakotoranga he nui te ihirangi wai.
- MXC-A1 (BDMAEE) – he whakakorikori pupuhi kaha mō ngā pahuka pakari me ngā pūnaha RIM.
- MXC-70 – he whakakōkī haunga iti i hangaia mō ngā pūnaha pupuhi-wai hei whakapai ake i te pakari o te mata.
E whakapau kaha ana mātou ki te āwhina i ngā kaihanga polyurethane ki te whakapai ake i te mahi a ngā hua, ki te whakaiti i ngā tukunga, me te whakatutuki i ngā hiahia o te mākete e huri haere ana.
Hononga Mai Ki a Mātou
Mena kei te rapu koe i tētahi kaiwhakarato whakakorikori amine pono mō tō hanga polyurethane, ka tono atu mātou kia tūhuratia e koe ā mātou hua me ō pūkenga hangarau. Kei te rite tā mātou tīma R&D ki te whakarato i ngā otinga me te tautoko ritenga mō ō hiahia hanga.
Whakapā mai ki a mātou i tēnei rā tonu hei tono tauira, hei kōrero rānei me pēhea e taea ai e ā mātou whakakorikori te whakapai ake i te pai o tō whakaputa pahuka.
Wā tuku: 14 Paenga-whāwhā 2025